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Finding the Fourth Proportional to 2,968.47, 4,452.89 and 993.99

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Solution

The fourth proportional to 2,968.47, 4,452.89 and 993.99 is: 1,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.47 : 4,452.89 = 993.99 : x
  2. Step 2: Convert to fraction form
    2,968.47/4,452.89 = 993.99/x
  3. Step 3: Cross multiply
    2,968.47x = 4,452.89 × 993.99
  4. Step 4: Simplify right side
    2,968.47x = 4,426,128.13
  5. Step 5: Solve for x
    x = 4,426,128.13/2,968.47
  6. Step 6: Final answer
    x = 1,491.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.